Multi-microphone noise reduction techniques as front-end devices for speech recognition

@article{Bitzer2001MultimicrophoneNR,
  title={Multi-microphone noise reduction techniques as front-end devices for speech recognition},
  author={J{\"o}rg Bitzer and Klaus Uwe Simmer and Karl-Dirk Kammeyer},
  journal={Speech Communication},
  year={2001},
  volume={34},
  pages={3-12}
}
In this paper, we describe di€erent multi-microphone noise reduction techniques as front-ends for a speaker-independent isolated word recognizer in an oce environment. Our focus lies on examining the recognition rate if the noise source is not Gaussian and stationary, but a second speaker in the same room. In this case, standard noise reduction techniques like spectral subtraction fail, whereas multi-microphone techniques can raise the recognition rate by using spatial information. We compare… CONTINUE READING
Highly Cited
This paper has 29 citations. REVIEW CITATIONS